Variables Included:Dispute-level data: Start and end dates,
Dispute outcome and form of settlement, Fatality level, Dispute duration, Level
of hostility, Reciprocated dispute?, Number of states on each side, Dispute
name; Participant-level data: Start and end dates of participation in
dispute, Revisionist status and revision type, Fatality level, Level of
hostility, Dispute originator status (Note: new variables are available in the MID3 data that can now be downloaded; the list is forthcoming.)

Kristian Gleditsch's Expanded War Data: A revision and expansion of the COW war data that uses Gleditsch and Ward's alternative interstate system membership list. This data set includes both interstate wars and civil wars (including "extra-systemic" wars). It was described in his 2004 International Interactions article.

Russ Leng's Behavioral Correlates of War (BCOW) Crisis Data is available in both
Mac and
Windows
versions (note that these download links are to StuffIt (.sit) and zipped (.zip) archives
containing data, documentation, and the needed software for working with the data.)

Spatial-Temporal Domain: more than forty international crises between 1838-1980
(selected as a representative sample of crises since 1816)

Variables Included: date of event, actor and target, type of event, immediate impact
on target, tempo of event; the included software allows users to scale and aggregate the raw
events data.

International Crisis Behavior (ICB) Data
Archive (One of the leading data sets for the study of armed conflict, particularly useful because it includes a number of variables related to conflict management. ICB provides crisis-level, actor-level, and dyadic-level data on each crisis. Their web site also includes a data viewer that can be used to view the coding and historical narrative of each crisis.)

Spatial-Temporal Domain: Entire world, 1919-2005

Variables Included: (list forthcoming)

SHERFACS Crisis
Data Archive (a crisis data set collected by the late Frank Sherman, maintained by
his executor Hayward Alker, and made available for download by the Paris-in-LA project. The
data set
is available in Paradox database form - be warned that this is a huge file, 5.7 MB. A
codebook
is also available, and an additional
overview
of the SHERFACS project is available at MIT.)

Spatial-Temporal Domain:

Variables Included:

Ernst Haas' Collective Security Data (available on-line through the
PARIS-in-LA project
at USC; this is the final version of the data used by Haas in "Collective Conflict
Management: Evidence for a New World Order?" [in Thomas G.
Weiss, ed.,Collective Security in a Changing World, 1993], "Regime Decay: Conflict
Management and International Organization, 1945-1981" [International Organization,
1983], and Why We Still Need the United Nations: The Collective Management of International
Conflict, 1945-1984 [1986]. Three versions of the data set are available,
including
UN cases,
regional cases, and combined
UN and regional cases)

Claudio Cioffi's Long Range Analysis of
War (LORANOW) Project studies warfare in non-Western settings. Currently, this is limited to data on
warfare in ancient China and the East Asian system, but more regions will eventually become
available, including the ancient Near East (Mesopotamia), the Central Andes (Peru), and
Mesoamerica (including Maya civilization).

Spatial-Temporal Domain: Currently China and the East Asian system, from roughly
2700 B.C. to 722 B.C.

Variables Included: war name, historical epoch, onset and termination dates,
number of participants, intra- or intergroup conflict, ethnic diversity of belligerents,
alliance clusters among participants, political status and political complexity of belligerents,
systemic polarity, capability balance among participants, temporal context

Variables Included: a variety of different data sets and case listings
in both monadic and dyadic forms, including both primarily internal and primarily
interstate conflicts.

Major Episodes of Political Violence
(from the Center for Systemic Peace in Maryland; see also the related Armed Conflict and Intervention (ACI) project. This data set includes conflicts that are listed in
one or more other data sources, ranging from civil-intrastate and ethnic-intrastate
to international conflicts and including a wide range of severity levels between low-level
violence and full-scale war.)

Global and Regional Conflict Trends
(from the Center for Systemic Peace in Maryland; note that this gives a graphical presentation
of aggregated data from various sources, rather than the actual data sets themselves)

Variables Included: warfare, ethnopolitical rebellion, refugees and displaced
populations, democracy and autocracy, and violent conflicts; some graphs are broken
down by region rather than aggregated globally

Current Status of the World's Major
Armed Conflicts (from the Center for Systemic Peace in Maryland; includes "all known
instances of major armed conflict and population displacement in the world in the late 1990s"
with a brief description of each conflict, an assessment of its current status, and an estimate
of the number of refugees and internally displaced population at the end of 1998)

Variables Included: War ID Number, First and last year of war,
COW country codes for antagonists, Length (duration) of war in months,
Censored war ending?, Offensive and defensive strategies in war (attrition
/ maneuver / punishment), Terrain coding (ranges from open terrain to
impassable), Terrain-strategy interaction, Total Military Personnel,
Total Population, Population Ratio, COW Balance of Forces Ratio (adjusted
for distance), Force Quality Ratio, War Salience, Political
Repression, Democracy, Surprise, Number of States in War, Previous
Disputes between Belligerents

Event Data

KEDS Event Data (Access to a number of collections of event data from the Kansas Event Data System (KEDS) project, including data using the associated Conflict and Mediation Event Observations (CAMEO) coding scheme. The downloadable data sets include data on events in the Levant, the Gulf region and Arabian Peninsula, West Africa, Central Asia, and the Balkans, among others.)

Minorities at Risk Project
(A research project that "monitors and analyzes the status and conflicts of politically-active communal groups in all countries with a current population of at least 500,000." Besides the downloadable quantitative data, they also provide a searchable interface that can bring up information on each group that is included in the data set. The main MAR data has recently been augmented by the addition of the Minorities at Risk Organizational Behavior (MAROB) data set.)

Statistics of Democide (from
Rudolph Rummel's Power Kills site,
which includes numerous book chapters and other manuscripts,
as well as GIF versions of many data tables from these manuscripts. Unfortunately,
there are no easily accessible data files that can be downloaded outside of these
GIF files, so the user must download the files and transcribe the desired
variables by hand from the GIF images. I am including direct links to what appear
to be the most useful tables/figures; interested users are invited to visit
Rummel's site for more information. )

Spatial-Temporal Domain: all UN votes by each member country in the first
53 UN General Assemblies, or 1946-1998 (data for assemblies 1-40 taken from ICPSR study #5512;
46-49 from Kim and Russett's 1996 IO article; all others collected by the author)